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Save literal value of the parsed number to preserve it for the output

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Extend jv_number to use decNumber for storing number literals. Any math
operations on the numbers will truncate them to double precision.
Comparisons when both numbers are literal numbers will compare them
without truncation.

Delay conversion of numbers to doubles until a math operation is performed,
to preserve precision. A literal jv_number will only need conversion to
double once, and will reuse the resultant double on subsequent
conversions.

Outputting literal jv_numbers preserves the original precision.

Add strong pthread requirement to manage contexts/allocations for
converting numbers between their decNumber, string, and double formats.
This commit is contained in:
Leonid S. Usov authored and William Langford committed 2019-10-22 14:11:04 -04:00
1 parent b6be13d5de
commit cf4b48c7ba
21 files changed
+1374 -755
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configure.ac
+3 -11
View File
@@ -136,17 +136,9 @@ AC_CHECK_MEMBER([struct tm.tm_gmtoff], [AC_DEFINE([HAVE_TM_TM_GMT_OFF],1,[Define
AC_CHECK_MEMBER([struct tm.__tm_gmtoff], [AC_DEFINE([HAVE_TM___TM_GMT_OFF],1,[Define to 1 if the system has the __tm_gmt_off field in struct tm])],
[], [[#include <time.h>]])
AC_ARG_ENABLE([pthread-tls],
[AC_HELP_STRING([--enable-pthread-tls],
[Enable use of pthread thread local storage])],
[],
[enable_pthread_tls=no])
if test $enable_pthread_tls = yes; then
AC_FIND_FUNC([pthread_key_create], [pthread], [#include <pthread.h>], [NULL, NULL])
AC_FIND_FUNC([pthread_once], [pthread], [#include <pthread.h>], [NULL, NULL])
AC_FIND_FUNC([atexit], [pthread], [#include <stdlib.h>], [NULL])
fi
AC_FIND_FUNC([pthread_key_create], [pthread], [#include <pthread.h>], [NULL, NULL])
AC_FIND_FUNC([pthread_once], [pthread], [#include <pthread.h>], [NULL, NULL])
AC_FIND_FUNC([atexit], [pthread], [#include <stdlib.h>], [NULL])
dnl libm math.h functions
AC_CHECK_MATH_FUNC(acos)